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Comparing BDB/BDB.xs (file contents):
Revision 1.1 by root, Mon Feb 5 18:40:55 2007 UTC vs.
Revision 1.19 by root, Mon Sep 24 18:14:11 2007 UTC

1	/* solaris */	1	#include "xthread.h"
2	#define _POSIX_PTHREAD_SEMANTICS 1
3
4	#if __linux && !defined(_GNU_SOURCE)
5	# define _GNU_SOURCE
6	#endif
7
8	/* just in case */
9	#define _REENTRANT 1
10		2
11	#include <errno.h>	3	#include <errno.h>
12		4
13	#include "EXTERN.h"	5	#include "EXTERN.h"
14	#include "perl.h"	6	#include "perl.h"
15	#include "XSUB.h"	7	#include "XSUB.h"
16		8
17	#include <pthread.h>	9	// perl stupidly defines these as macros, breaking
		10	// lots and lots of code.
		11	#undef open
		12	#undef close
		13	#undef abort
		14	#undef malloc
		15	#undef free
		16	#undef send
18		17
19	#include <stddef.h>	18	#include <stddef.h>
20	#include <stdlib.h>	19	#include <stdlib.h>
21	#include <errno.h>	20	#include <errno.h>
22	#include <sys/time.h>
23	#include <sys/select.h>
24	#include <sys/types.h>	21	#include <sys/types.h>
25	#include <sys/stat.h>
26	#include <limits.h>	22	#include <limits.h>
27	#include <unistd.h>
28	#include <fcntl.h>	23	#include <fcntl.h>
29	#include <signal.h>	24
		25	#ifndef _WIN32
		26	# include <sys/time.h>
		27	# include <unistd.h>
		28	#endif
		29
30	#include <sched.h>	30	#include <db.h>
		31
		32	#if DB_VERSION_MAJOR < 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR < 4)
		33	# error you need Berkeley DB 4.4 or newer installed
		34	#endif
31		35
32	/* number of seconds after which idle threads exit */	36	/* number of seconds after which idle threads exit */
33	#define IDLE_TIMEOUT 10	37	#define IDLE_TIMEOUT 10
34		38
35	/* wether word reads are potentially non-atomic.	39	typedef DB_ENV DB_ENV_ornull;
36	* this is conservatice, likely most arches this runs	40	typedef DB_TXN DB_TXN_ornull;
37	* on have atomic word read/writes.	41	typedef DBC DBC_ornull;
38	*/	42	typedef DB DB_ornull;
39	#ifndef WORDACCESS_UNSAFE	43	typedef DB_SEQUENCE DB_SEQUENCE_ornull;
40	# if __i386 || __x86_64	44
41	# define WORDACCESS_UNSAFE 0	45	typedef SV SV8; /* byte-sv, used for argument-checking */
42	# else	46	typedef char *octetstring;
43	# define WORDACCESS_UNSAFE 1	47
44	# endif	48	static SV *prepare_cb;
		49
		50	#if DB_VERSION_MINOR >= 6
		51	# define c_close close
		52	# define c_count count
		53	# define c_del del
		54	# define c_dup dup
		55	# define c_get get
		56	# define c_pget pget
		57	# define c_put put
45	#endif	58	#endif
46		59
47	typedef SV SV8; /* byte-sv, used for argument-checking */	60	static void
		61	debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
		62	{
		63	printf ("err[%s]\n", msg);
		64	}
48		65
		66	static void
		67	debug_msgcall (const DB_ENV *dbenv, const char *msg)
		68	{
		69	printf ("msg[%s]\n", msg);
		70	}
		71
		72	static char *
		73	strdup_ornull (const char *s)
		74	{
		75	return s ? strdup (s) : 0;
		76	}
		77
		78	static void
		79	sv_to_dbt (DBT *dbt, SV *sv)
		80	{
		81	STRLEN len;
		82	char *data = SvPVbyte (sv, len);
		83
		84	dbt->data = malloc (len);
		85	memcpy (dbt->data, data, len);
		86	dbt->size = len;
		87	dbt->flags = DB_DBT_REALLOC;
		88	}
		89
		90	static void
		91	dbt_to_sv (SV *sv, DBT *dbt)
		92	{
		93	if (sv)
		94	{
		95	SvREADONLY_off (sv);
		96	sv_setpvn_mg (sv, dbt->data, dbt->size);
		97	SvREFCNT_dec (sv);
		98	}
		99
		100	free (dbt->data);
		101	}
		102
49	enum {	103	enum {
50	REQ_QUIT,	104	REQ_QUIT,
		105	REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
		106	REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE,
		107	REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC,
		108	REQ_DB_PUT, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
		109	REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
		110	REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
		111	REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
51	};	112	};
52		113
53	#define AIO_CB \
54	struct aio_cb *volatile next; \
55	SV *callback; \
56	int type, pri
57
58	typedef struct aio_cb	114	typedef struct aio_cb
59	{	115	{
60	AIO_CB;	116	struct aio_cb *volatile next;
		117	SV *callback;
		118	int type, pri, result;
		119
		120	DB_ENV *env;
		121	DB *db;
		122	DB_TXN *txn;
		123	DBC *dbc;
		124
		125	UV uv1;
		126	int int1, int2;
		127	U32 uint1, uint2;
		128	char *buf1, *buf2;
		129	SV *sv1, *sv2, *sv3;
		130
		131	DBT dbt1, dbt2, dbt3;
		132	DB_KEY_RANGE key_range;
		133	DB_SEQUENCE *seq;
		134	db_seq_t seq_t;
61	} aio_cb;	135	} aio_cb;
62		136
63	typedef aio_cb *aio_req;	137	typedef aio_cb *aio_req;
64		138
65	enum {	139	enum {
…		…
85		159
86	static int next_pri = DEFAULT_PRI + PRI_BIAS;	160	static int next_pri = DEFAULT_PRI + PRI_BIAS;
87		161
88	static unsigned int started, idle, wanted;	162	static unsigned int started, idle, wanted;
89		163
90	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
91	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
92	#else
93	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
94	#endif
95
96	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
97	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
98
99	/* worker threads management */	164	/* worker threads management */
100	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;	165	static mutex_t wrklock = X_MUTEX_INIT;
101		166
102	typedef struct worker {	167	typedef struct worker {
103	/* locked by wrklock */	168	/* locked by wrklock */
104	struct worker *prev, *next;	169	struct worker *prev, *next;
105		170
106	pthread_t tid;	171	thread_t tid;
107		172
108	/* locked by reslock, reqlock or wrklock */	173	/* locked by reslock, reqlock or wrklock */
109	aio_req req; /* currently processed request */	174	aio_req req; /* currently processed request */
110	void *dbuf;	175	void *dbuf;
111	DIR *dirp;	176	DIR *dirp;
…		…
126	}	191	}
127		192
128	static volatile unsigned int nreqs, nready, npending;	193	static volatile unsigned int nreqs, nready, npending;
129	static volatile unsigned int max_idle = 4;	194	static volatile unsigned int max_idle = 4;
130	static volatile unsigned int max_outstanding = 0xffffffff;	195	static volatile unsigned int max_outstanding = 0xffffffff;
131	static int respipe [2];	196	static int respipe_osf [2], respipe [2] = { -1, -1 };
132		197
133	static pthread_mutex_t reslock = AIO_MUTEX_INIT;	198	static mutex_t reslock = X_MUTEX_INIT;
134	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;	199	static mutex_t reqlock = X_MUTEX_INIT;
135	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	200	static cond_t reqwait = X_COND_INIT;
136		201
137	#if WORDACCESS_UNSAFE	202	#if WORDACCESS_UNSAFE
138		203
139	static unsigned int get_nready ()	204	static unsigned int get_nready ()
140	{	205	{
141	unsigned int retval;	206	unsigned int retval;
142		207
143	LOCK (reqlock);	208	X_LOCK (reqlock);
144	retval = nready;	209	retval = nready;
145	UNLOCK (reqlock);	210	X_UNLOCK (reqlock);
146		211
147	return retval;	212	return retval;
148	}	213	}
149		214
150	static unsigned int get_npending ()	215	static unsigned int get_npending ()
151	{	216	{
152	unsigned int retval;	217	unsigned int retval;
153		218
154	LOCK (reslock);	219	X_LOCK (reslock);
155	retval = npending;	220	retval = npending;
156	UNLOCK (reslock);	221	X_UNLOCK (reslock);
157		222
158	return retval;	223	return retval;
159	}	224	}
160		225
161	static unsigned int get_nthreads ()	226	static unsigned int get_nthreads ()
162	{	227	{
163	unsigned int retval;	228	unsigned int retval;
164		229
165	LOCK (wrklock);	230	X_LOCK (wrklock);
166	retval = started;	231	retval = started;
167	UNLOCK (wrklock);	232	X_UNLOCK (wrklock);
168		233
169	return retval;	234	return retval;
170	}	235	}
171		236
172	#else	237	#else
…		…
230		295
231	abort ();	296	abort ();
232	}	297	}
233		298
234	static int poll_cb ();	299	static int poll_cb ();
235	static int req_invoke (aio_req req);
236	static void req_free (aio_req req);	300	static void req_free (aio_req req);
237	static void req_cancel (aio_req req);	301	static void req_cancel (aio_req req);
238		302
239	static int req_invoke (aio_req req)	303	static int req_invoke (aio_req req)
240	{	304	{
…		…
243	if (SvOK (req->callback))	307	if (SvOK (req->callback))
244	{	308	{
245	ENTER;	309	ENTER;
246	SAVETMPS;	310	SAVETMPS;
247	PUSHMARK (SP);	311	PUSHMARK (SP);
248	EXTEND (SP, 1);
249		312
250	switch (req->type)	313	switch (req->type)
251	{	314	{
		315	case REQ_DB_CLOSE:
		316	SvREFCNT_dec (req->sv1);
		317	break;
		318
		319	case REQ_DB_GET:
		320	case REQ_DB_PGET:
		321	dbt_to_sv (req->sv3, &req->dbt3);
		322	break;
		323
		324	case REQ_C_GET:
		325	case REQ_C_PGET:
		326	dbt_to_sv (req->sv1, &req->dbt1);
		327	dbt_to_sv (req->sv2, &req->dbt2);
		328	dbt_to_sv (req->sv3, &req->dbt3);
		329	break;
		330
		331	case REQ_DB_KEY_RANGE:
		332	{
		333	AV *av = newAV ();
		334
		335	av_push (av, newSVnv (req->key_range.less));
		336	av_push (av, newSVnv (req->key_range.equal));
		337	av_push (av, newSVnv (req->key_range.greater));
		338
		339	SvREADONLY_off (req->sv1);
		340	sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
		341	SvREFCNT_dec (req->sv1);
		342	}
		343	break;
		344
		345	case REQ_SEQ_GET:
		346	SvREADONLY_off (req->sv1);
		347
		348	if (sizeof (IV) > 4)
		349	sv_setiv_mg (req->sv1, req->seq_t);
		350	else
		351	sv_setnv_mg (req->sv1, req->seq_t);
		352
		353	SvREFCNT_dec (req->sv1);
		354	break;
252	}	355	}
		356
		357	errno = req->result;
253		358
254	PUTBACK;	359	PUTBACK;
255	call_sv (req->callback, G_VOID | G_EVAL);	360	call_sv (req->callback, G_VOID | G_EVAL);
256	SPAGAIN;	361	SPAGAIN;
257		362
…		…
262	return !SvTRUE (ERRSV);	367	return !SvTRUE (ERRSV);
263	}	368	}
264		369
265	static void req_free (aio_req req)	370	static void req_free (aio_req req)
266	{	371	{
		372	free (req->buf1);
		373	free (req->buf2);
267	Safefree (req);	374	Safefree (req);
268	}	375	}
269		376
270	static void *aio_proc(void *arg);	377	#ifdef USE_SOCKETS_AS_HANDLES
		378	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		379	#else
		380	# define TO_SOCKET(x) (x)
		381	#endif
		382
		383	static void
		384	create_respipe ()
		385	{
		386	int old_readfd = respipe [0];
		387
		388	if (respipe [1] >= 0)
		389	respipe_close (TO_SOCKET (respipe [1]));
		390
		391	#ifdef _WIN32
		392	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		393	#else
		394	if (pipe (respipe))
		395	#endif
		396	croak ("unable to initialize result pipe");
		397
		398	if (old_readfd >= 0)
		399	{
		400	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		401	croak ("unable to initialize result pipe(2)");
		402
		403	respipe_close (respipe [0]);
		404	respipe [0] = old_readfd;
		405	}
		406
		407	#ifdef _WIN32
		408	int arg = 1;
		409	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		410	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		411	#else
		412	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		413	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		414	#endif
		415	croak ("unable to initialize result pipe(3)");
		416
		417	respipe_osf [0] = TO_SOCKET (respipe [0]);
		418	respipe_osf [1] = TO_SOCKET (respipe [1]);
		419	}
		420
		421	X_THREAD_PROC (bdb_proc);
271		422
272	static void start_thread (void)	423	static void start_thread (void)
273	{	424	{
274	sigset_t fullsigset, oldsigset;
275	pthread_attr_t attr;
276
277	worker *wrk = calloc (1, sizeof (worker));	425	worker *wrk = calloc (1, sizeof (worker));
278		426
279	if (!wrk)	427	if (!wrk)
280	croak ("unable to allocate worker thread data");	428	croak ("unable to allocate worker thread data");
281		429
282	pthread_attr_init (&attr);
283	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
284	#ifdef PTHREAD_SCOPE_PROCESS
285	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
286	#endif
287
288	sigfillset (&fullsigset);
289
290	LOCK (wrklock);	430	X_LOCK (wrklock);
291	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
292
293	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)	431	if (thread_create (&wrk->tid, bdb_proc, (void *)wrk))
294	{	432	{
295	wrk->prev = &wrk_first;	433	wrk->prev = &wrk_first;
296	wrk->next = wrk_first.next;	434	wrk->next = wrk_first.next;
297	wrk_first.next->prev = wrk;	435	wrk_first.next->prev = wrk;
298	wrk_first.next = wrk;	436	wrk_first.next = wrk;
299	++started;	437	++started;
300	}	438	}
301	else	439	else
302	free (wrk);	440	free (wrk);
303		441
304	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
305	UNLOCK (wrklock);	442	X_UNLOCK (wrklock);
306	}	443	}
307		444
308	static void maybe_start_thread ()	445	static void maybe_start_thread ()
309	{	446	{
310	if (get_nthreads () >= wanted)	447	if (get_nthreads () >= wanted)
…		…
317	start_thread ();	454	start_thread ();
318	}	455	}
319		456
320	static void req_send (aio_req req)	457	static void req_send (aio_req req)
321	{	458	{
		459	SV *wait_callback = 0;
		460
		461	// synthesize callback if none given
		462	if (!SvOK (req->callback))
		463	{
		464	int count;
		465
		466	dSP;
		467	PUSHMARK (SP);
		468	PUTBACK;
		469	count = call_sv (prepare_cb, G_ARRAY);
		470	SPAGAIN;
		471
		472	if (count != 2)
		473	croak ("prepare callback must return exactly two values\n");
		474
		475	wait_callback = SvREFCNT_inc (POPs);
		476	SvREFCNT_dec (req->callback);
		477	req->callback = SvREFCNT_inc (POPs);
		478	}
		479
322	++nreqs;	480	++nreqs;
323		481
324	LOCK (reqlock);	482	X_LOCK (reqlock);
325	++nready;	483	++nready;
326	reqq_push (&req_queue, req);	484	reqq_push (&req_queue, req);
327	pthread_cond_signal (&reqwait);	485	X_COND_SIGNAL (reqwait);
328	UNLOCK (reqlock);	486	X_UNLOCK (reqlock);
329		487
330	maybe_start_thread ();	488	maybe_start_thread ();
		489
		490	if (wait_callback)
		491	{
		492	dSP;
		493	PUSHMARK (SP);
		494	PUTBACK;
		495	call_sv (wait_callback, G_DISCARD);
		496	SvREFCNT_dec (wait_callback);
		497	}
331	}	498	}
332		499
333	static void end_thread (void)	500	static void end_thread (void)
334	{	501	{
335	aio_req req;	502	aio_req req;
…		…
337	Newz (0, req, 1, aio_cb);	504	Newz (0, req, 1, aio_cb);
338		505
339	req->type = REQ_QUIT;	506	req->type = REQ_QUIT;
340	req->pri = PRI_MAX + PRI_BIAS;	507	req->pri = PRI_MAX + PRI_BIAS;
341		508
342	LOCK (reqlock);	509	X_LOCK (reqlock);
343	reqq_push (&req_queue, req);	510	reqq_push (&req_queue, req);
344	pthread_cond_signal (&reqwait);	511	X_COND_SIGNAL (reqwait);
345	UNLOCK (reqlock);	512	X_UNLOCK (reqlock);
346		513
347	LOCK (wrklock);	514	X_LOCK (wrklock);
348	--started;	515	--started;
349	UNLOCK (wrklock);	516	X_UNLOCK (wrklock);
350	}	517	}
351		518
352	static void set_max_idle (int nthreads)	519	static void set_max_idle (int nthreads)
353	{	520	{
354	if (WORDACCESS_UNSAFE) LOCK (reqlock);	521	if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
355	max_idle = nthreads <= 0 ? 1 : nthreads;	522	max_idle = nthreads <= 0 ? 1 : nthreads;
356	if (WORDACCESS_UNSAFE) UNLOCK (reqlock);	523	if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
357	}	524	}
358		525
359	static void min_parallel (int nthreads)	526	static void min_parallel (int nthreads)
360	{	527	{
361	if (wanted < nthreads)	528	if (wanted < nthreads)
…		…
376	fd_set rfd;	543	fd_set rfd;
377		544
378	while (nreqs)	545	while (nreqs)
379	{	546	{
380	int size;	547	int size;
381	if (WORDACCESS_UNSAFE) LOCK (reslock);	548	if (WORDACCESS_UNSAFE) X_LOCK (reslock);
382	size = res_queue.size;	549	size = res_queue.size;
383	if (WORDACCESS_UNSAFE) UNLOCK (reslock);	550	if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
384		551
385	if (size)	552	if (size)
386	return;	553	return;
387		554
388	maybe_start_thread ();	555	maybe_start_thread ();
389		556
390	FD_ZERO(&rfd);	557	FD_ZERO (&rfd);
391	FD_SET(respipe [0], &rfd);	558	FD_SET (respipe [0], &rfd);
392		559
393	select (respipe [0] + 1, &rfd, 0, 0, 0);	560	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
394	}	561	}
395	}	562	}
396		563
397	static int poll_cb ()	564	static int poll_cb ()
398	{	565	{
…		…
410	{	577	{
411	for (;;)	578	for (;;)
412	{	579	{
413	maybe_start_thread ();	580	maybe_start_thread ();
414		581
415	LOCK (reslock);	582	X_LOCK (reslock);
416	req = reqq_shift (&res_queue);	583	req = reqq_shift (&res_queue);
417		584
418	if (req)	585	if (req)
419	{	586	{
420	--npending;	587	--npending;
421		588
422	if (!res_queue.size)	589	if (!res_queue.size)
423	{	590	{
424	/* read any signals sent by the worker threads */	591	/* read any signals sent by the worker threads */
425	char buf [4];	592	char buf [4];
426	while (read (respipe [0], buf, 4) == 4)	593	while (respipe_read (respipe [0], buf, 4) == 4)
427	;	594	;
428	}	595	}
429	}	596	}
430		597
431	UNLOCK (reslock);	598	X_UNLOCK (reslock);
432		599
433	if (!req)	600	if (!req)
434	break;	601	break;
435		602
436	--nreqs;	603	--nreqs;
…		…
466	}	633	}
467		634
468	return count;	635	return count;
469	}	636	}
470		637
471	static void create_pipe ()
472	{
473	if (pipe (respipe))
474	croak ("unable to initialize result pipe");
475
476	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
477	croak ("cannot set result pipe to nonblocking mode");
478
479	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
480	croak ("cannot set result pipe to nonblocking mode");
481	}
482
483	/*****************************************************************************/	638	/*****************************************************************************/
484		639
485	static void *aio_proc (void *thr_arg)	640	X_THREAD_PROC (bdb_proc)
486	{	641	{
487	aio_req req;	642	aio_req req;
488	struct timespec ts;	643	struct timespec ts;
489	worker *self = (worker *)thr_arg;	644	worker *self = (worker *)thr_arg;
490		645
491	/* try to distribute timeouts somewhat evenly */	646	/* try to distribute timeouts somewhat evenly */
492	ts.tv_nsec = (((unsigned long)self + (unsigned long)ts.tv_sec) & 1023UL)	647	ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
493	* (1000000000UL / 1024UL);
494		648
495	for (;;)	649	for (;;)
496	{	650	{
497	ts.tv_sec = time (0) + IDLE_TIMEOUT;	651	ts.tv_sec = time (0) + IDLE_TIMEOUT;
498		652
499	LOCK (reqlock);	653	X_LOCK (reqlock);
500		654
501	for (;;)	655	for (;;)
502	{	656	{
503	self->req = req = reqq_shift (&req_queue);	657	self->req = req = reqq_shift (&req_queue);
504		658
505	if (req)	659	if (req)
506	break;	660	break;
507		661
508	++idle;	662	++idle;
509		663
510	if (pthread_cond_timedwait (&reqwait, &reqlock, &ts)	664	if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
511	== ETIMEDOUT)	665	== ETIMEDOUT)
512	{	666	{
513	if (idle > max_idle)	667	if (idle > max_idle)
514	{	668	{
515	--idle;	669	--idle;
516	UNLOCK (reqlock);	670	X_UNLOCK (reqlock);
517	LOCK (wrklock);	671	X_LOCK (wrklock);
518	--started;	672	--started;
519	UNLOCK (wrklock);	673	X_UNLOCK (wrklock);
520	goto quit;	674	goto quit;
521	}	675	}
522		676
523	/* we are allowed to idle, so do so without any timeout */	677	/* we are allowed to idle, so do so without any timeout */
524	pthread_cond_wait (&reqwait, &reqlock);	678	X_COND_WAIT (reqwait, reqlock);
525	ts.tv_sec = time (0) + IDLE_TIMEOUT;	679	ts.tv_sec = time (0) + IDLE_TIMEOUT;
526	}	680	}
527		681
528	--idle;	682	--idle;
529	}	683	}
530		684
531	--nready;	685	--nready;
532		686
533	UNLOCK (reqlock);	687	X_UNLOCK (reqlock);
534		688
535	errno = 0; /* strictly unnecessary */
536
537	switch (req->type)	689	switch (req->type)
538	{	690	{
539	case REQ_QUIT:	691	case REQ_QUIT:
		692	req->result = ENOSYS;
540	goto quit;	693	goto quit;
541		694
		695	case REQ_ENV_OPEN:
		696	req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
		697	break;
		698
		699	case REQ_ENV_CLOSE:
		700	req->result = req->env->close (req->env, req->uint1);
		701	break;
		702
		703	case REQ_ENV_TXN_CHECKPOINT:
		704	req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
		705	break;
		706
		707	case REQ_ENV_LOCK_DETECT:
		708	req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
		709	break;
		710
		711	case REQ_ENV_MEMP_SYNC:
		712	req->result = req->env->memp_sync (req->env, 0);
		713	break;
		714
		715	case REQ_ENV_MEMP_TRICKLE:
		716	req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
		717	break;
		718
		719	case REQ_DB_OPEN:
		720	req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
		721	break;
		722
		723	case REQ_DB_CLOSE:
		724	req->result = req->db->close (req->db, req->uint1);
		725	break;
		726
		727	case REQ_DB_COMPACT:
		728	req->result = req->db->compact (req->db, req->txn, &req->dbt1, &req->dbt2, 0, req->uint1, 0);
		729	break;
		730
		731	case REQ_DB_SYNC:
		732	req->result = req->db->sync (req->db, req->uint1);
		733	break;
		734
		735	case REQ_DB_PUT:
		736	req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
		737	break;
		738
		739	case REQ_DB_GET:
		740	req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
		741	break;
		742
		743	case REQ_DB_PGET:
		744	req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		745	break;
		746
		747	case REQ_DB_DEL:
		748	req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
		749	break;
		750
		751	case REQ_DB_KEY_RANGE:
		752	req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
		753	break;
		754
		755	case REQ_TXN_COMMIT:
		756	req->result = req->txn->commit (req->txn, req->uint1);
		757	break;
		758
		759	case REQ_TXN_ABORT:
		760	req->result = req->txn->abort (req->txn);
		761	break;
		762
		763	case REQ_TXN_FINISH:
		764	if (req->txn->flags & TXN_DEADLOCK)
		765	{
		766	req->result = req->txn->abort (req->txn);
		767	if (!req->result)
		768	req->result = DB_LOCK_DEADLOCK;
		769	}
		770	else
		771	req->result = req->txn->commit (req->txn, req->uint1);
		772	break;
		773
		774	case REQ_C_CLOSE:
		775	req->result = req->dbc->c_close (req->dbc);
		776	break;
		777
		778	case REQ_C_COUNT:
		779	{
		780	db_recno_t recno;
		781	req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
		782	req->uv1 = recno;
		783	}
		784	break;
		785
		786	case REQ_C_PUT:
		787	req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
		788	break;
		789
		790	case REQ_C_GET:
		791	req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
		792	break;
		793
		794	case REQ_C_PGET:
		795	req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
		796	break;
		797
		798	case REQ_C_DEL:
		799	req->result = req->dbc->c_del (req->dbc, req->uint1);
		800	break;
		801
		802	case REQ_SEQ_OPEN:
		803	req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
		804	break;
		805
		806	case REQ_SEQ_CLOSE:
		807	req->result = req->seq->close (req->seq, req->uint1);
		808	break;
		809
		810	case REQ_SEQ_GET:
		811	req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
		812	break;
		813
		814	case REQ_SEQ_REMOVE:
		815	req->result = req->seq->remove (req->seq, req->txn, req->uint1);
		816	break;
		817
542	default:	818	default:
543	//req->result = ENOSYS;	819	req->result = ENOSYS;
544	break;	820	break;
545	}	821	}
546		822
547	//req->errorno = errno;	823	if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
		824	req->txn->flags |= TXN_DEADLOCK;
548		825
549	LOCK (reslock);	826	X_LOCK (reslock);
550		827
551	++npending;	828	++npending;
552		829
553	if (!reqq_push (&res_queue, req))	830	if (!reqq_push (&res_queue, req))
554	/* write a dummy byte to the pipe so fh becomes ready */	831	/* write a dummy byte to the pipe so fh becomes ready */
555	write (respipe [1], &respipe, 1);	832	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
556		833
557	self->req = 0;	834	self->req = 0;
558	worker_clear (self);	835	worker_clear (self);
559		836
560	UNLOCK (reslock);	837	X_UNLOCK (reslock);
561	}	838	}
562		839
563	quit:	840	quit:
564	LOCK (wrklock);	841	X_LOCK (wrklock);
565	worker_free (self);	842	worker_free (self);
566	UNLOCK (wrklock);	843	X_UNLOCK (wrklock);
567		844
568	return 0;	845	return 0;
569	}	846	}
570		847
571	/*****************************************************************************/	848	/*****************************************************************************/
572		849
573	static void atfork_prepare (void)	850	static void atfork_prepare (void)
574	{	851	{
575	LOCK (wrklock);	852	X_LOCK (wrklock);
576	LOCK (reqlock);	853	X_LOCK (reqlock);
577	LOCK (reslock);	854	X_LOCK (reslock);
578	}	855	}
579		856
580	static void atfork_parent (void)	857	static void atfork_parent (void)
581	{	858	{
582	UNLOCK (reslock);	859	X_UNLOCK (reslock);
583	UNLOCK (reqlock);	860	X_UNLOCK (reqlock);
584	UNLOCK (wrklock);	861	X_UNLOCK (wrklock);
585	}	862	}
586		863
587	static void atfork_child (void)	864	static void atfork_child (void)
588	{	865	{
589	aio_req prv;	866	aio_req prv;
…		…
609	idle = 0;	886	idle = 0;
610	nreqs = 0;	887	nreqs = 0;
611	nready = 0;	888	nready = 0;
612	npending = 0;	889	npending = 0;
613		890
614	close (respipe [0]);
615	close (respipe [1]);
616	create_pipe ();	891	create_respipe ();
617		892
618	atfork_parent ();	893	atfork_parent ();
619	}	894	}
620		895
621	#define dREQ \	896	#define dREQ(reqtype) \
622	aio_req req; \	897	aio_req req; \
623	int req_pri = next_pri; \	898	int req_pri = next_pri; \
624	next_pri = DEFAULT_PRI + PRI_BIAS; \	899	next_pri = DEFAULT_PRI + PRI_BIAS; \
625	\	900	\
626	if (SvOK (callback) && !SvROK (callback)) \	901	if (SvOK (callback) && !SvROK (callback)) \
627	croak ("callback must be undef or of reference type"); \	902	croak ("callback must be undef or of reference type"); \
628	\	903	\
629	Newz (0, req, 1, aio_cb); \	904	Newz (0, req, 1, aio_cb); \
630	if (!req) \	905	if (!req) \
631	croak ("out of memory during aio_req allocation"); \	906	croak ("out of memory during aio_req allocation"); \
632	\	907	\
633	req->callback = newSVsv (callback); \	908	req->callback = newSVsv (callback); \
		909	req->type = (reqtype); \
634	req->pri = req_pri	910	req->pri = req_pri
635		911
636	#define REQ_SEND \	912	#define REQ_SEND \
637	req_send (req); \	913	req_send (req)
		914
		915	#define SvPTR(var, arg, type, class, nullok) \
		916	if (!SvOK (arg)) \
		917	{ \
		918	if (!nullok) \
		919	croak (# var " must be a " # class " object, not undef"); \
638	\	920	\
639	if (GIMME_V != G_VOID) \	921	(var) = 0; \
640	XPUSHs (req_sv (req, AIO_REQ_KLASS));	922	} \
641		923	else if (sv_derived_from ((arg), # class)) \
		924	{ \
		925	IV tmp = SvIV ((SV*) SvRV (arg)); \
		926	(var) = INT2PTR (type, tmp); \
		927	if (!var) \
		928	croak (# var " is not a valid " # class " object anymore"); \
		929	} \
		930	else \
		931	croak (# var " is not of type " # class); \
		932	\
		933
		934	static void
		935	ptr_nuke (SV *sv)
		936	{
		937	assert (SvROK (sv));
		938	sv_setiv (SvRV (sv), 0);
		939	}
		940
642	MODULE = BDB::AIO PACKAGE = BDB::AIO	941	MODULE = BDB PACKAGE = BDB
643		942
644	PROTOTYPES: ENABLE	943	PROTOTYPES: ENABLE
645		944
646	BOOT:	945	BOOT:
647	{	946	{
648	HV *stash = gv_stashpv ("BDB::AIO", 1);	947	HV *stash = gv_stashpv ("BDB", 1);
649		948
650	create_pipe ();	949	static const struct {
		950	const char *name;
		951	IV iv;
		952	} *civ, const_iv[] = {
		953	#define const_iv(name) { # name, (IV)DB_ ## name },
		954	const_iv (RPCCLIENT)
		955	const_iv (INIT_CDB)
		956	const_iv (INIT_LOCK)
		957	const_iv (INIT_LOG)
		958	const_iv (INIT_MPOOL)
		959	const_iv (INIT_REP)
		960	const_iv (INIT_TXN)
		961	const_iv (RECOVER)
		962	const_iv (INIT_TXN)
		963	const_iv (RECOVER_FATAL)
		964	const_iv (CREATE)
		965	const_iv (USE_ENVIRON)
		966	const_iv (USE_ENVIRON_ROOT)
		967	const_iv (LOCKDOWN)
		968	const_iv (PRIVATE)
		969	const_iv (REGISTER)
		970	const_iv (SYSTEM_MEM)
		971	const_iv (AUTO_COMMIT)
		972	const_iv (CDB_ALLDB)
		973	const_iv (DIRECT_DB)
		974	const_iv (DIRECT_LOG)
		975	const_iv (DSYNC_DB)
		976	const_iv (DSYNC_LOG)
		977	const_iv (LOG_AUTOREMOVE)
		978	const_iv (LOG_INMEMORY)
		979	const_iv (NOLOCKING)
		980	const_iv (NOMMAP)
		981	const_iv (NOPANIC)
		982	const_iv (OVERWRITE)
		983	const_iv (PANIC_ENVIRONMENT)
		984	const_iv (REGION_INIT)
		985	const_iv (TIME_NOTGRANTED)
		986	const_iv (TXN_NOSYNC)
		987	const_iv (TXN_WRITE_NOSYNC)
		988	const_iv (WRITECURSOR)
		989	const_iv (YIELDCPU)
		990	const_iv (ENCRYPT_AES)
		991	const_iv (XA_CREATE)
		992	const_iv (BTREE)
		993	const_iv (HASH)
		994	const_iv (QUEUE)
		995	const_iv (RECNO)
		996	const_iv (UNKNOWN)
		997	const_iv (EXCL)
		998	const_iv (READ_COMMITTED)
		999	const_iv (READ_UNCOMMITTED)
		1000	const_iv (TRUNCATE)
		1001	const_iv (NOSYNC)
		1002	const_iv (CHKSUM)
		1003	const_iv (ENCRYPT)
		1004	const_iv (TXN_NOT_DURABLE)
		1005	const_iv (DUP)
		1006	const_iv (DUPSORT)
		1007	const_iv (RECNUM)
		1008	const_iv (RENUMBER)
		1009	const_iv (REVSPLITOFF)
		1010	const_iv (INORDER)
		1011	const_iv (CONSUME)
		1012	const_iv (CONSUME_WAIT)
		1013	const_iv (GET_BOTH)
		1014	const_iv (GET_BOTH_RANGE)
		1015	//const_iv (SET_RECNO)
		1016	//const_iv (MULTIPLE)
		1017	const_iv (SNAPSHOT)
		1018	const_iv (JOIN_ITEM)
		1019	const_iv (RMW)
		1020
		1021	const_iv (NOTFOUND)
		1022	const_iv (KEYEMPTY)
		1023	const_iv (LOCK_DEADLOCK)
		1024	const_iv (LOCK_NOTGRANTED)
		1025	const_iv (RUNRECOVERY)
		1026	const_iv (OLD_VERSION)
		1027	const_iv (REP_HANDLE_DEAD)
		1028	const_iv (REP_LOCKOUT)
		1029	const_iv (SECONDARY_BAD)
		1030
		1031	const_iv (FREE_SPACE)
		1032	const_iv (FREELIST_ONLY)
		1033
		1034	const_iv (APPEND)
		1035	const_iv (NODUPDATA)
		1036	const_iv (NOOVERWRITE)
		1037
		1038	const_iv (TXN_NOWAIT)
		1039	const_iv (TXN_SYNC)
		1040
		1041	const_iv (SET_LOCK_TIMEOUT)
		1042	const_iv (SET_TXN_TIMEOUT)
		1043
		1044	const_iv (JOIN_ITEM)
		1045	const_iv (FIRST)
		1046	const_iv (NEXT)
		1047	const_iv (NEXT_DUP)
		1048	const_iv (NEXT_NODUP)
		1049	const_iv (PREV)
		1050	const_iv (PREV_NODUP)
		1051	const_iv (SET)
		1052	const_iv (SET_RANGE)
		1053	const_iv (LAST)
		1054	const_iv (BEFORE)
		1055	const_iv (AFTER)
		1056	const_iv (CURRENT)
		1057	const_iv (KEYFIRST)
		1058	const_iv (KEYLAST)
		1059	const_iv (NODUPDATA)
		1060
		1061	const_iv (FORCE)
		1062
		1063	const_iv (LOCK_DEFAULT)
		1064	const_iv (LOCK_EXPIRE)
		1065	const_iv (LOCK_MAXLOCKS)
		1066	const_iv (LOCK_MAXWRITE)
		1067	const_iv (LOCK_MINLOCKS)
		1068	const_iv (LOCK_MINWRITE)
		1069	const_iv (LOCK_OLDEST)
		1070	const_iv (LOCK_RANDOM)
		1071	const_iv (LOCK_YOUNGEST)
		1072
		1073	const_iv (SEQ_DEC)
		1074	const_iv (SEQ_INC)
		1075	const_iv (SEQ_WRAP)
		1076
		1077	const_iv (BUFFER_SMALL)
		1078	const_iv (DONOTINDEX)
		1079	const_iv (KEYEMPTY )
		1080	const_iv (KEYEXIST )
		1081	const_iv (LOCK_DEADLOCK)
		1082	const_iv (LOCK_NOTGRANTED)
		1083	const_iv (LOG_BUFFER_FULL)
		1084	const_iv (NOSERVER)
		1085	const_iv (NOSERVER_HOME)
		1086	const_iv (NOSERVER_ID)
		1087	const_iv (NOTFOUND)
		1088	const_iv (OLD_VERSION)
		1089	const_iv (PAGE_NOTFOUND)
		1090	const_iv (REP_DUPMASTER)
		1091	const_iv (REP_HANDLE_DEAD)
		1092	const_iv (REP_HOLDELECTION)
		1093	const_iv (REP_IGNORE)
		1094	const_iv (REP_ISPERM)
		1095	const_iv (REP_JOIN_FAILURE)
		1096	const_iv (REP_LOCKOUT)
		1097	const_iv (REP_NEWMASTER)
		1098	const_iv (REP_NEWSITE)
		1099	const_iv (REP_NOTPERM)
		1100	const_iv (REP_UNAVAIL)
		1101	const_iv (RUNRECOVERY)
		1102	const_iv (SECONDARY_BAD)
		1103	const_iv (VERIFY_BAD)
		1104	const_iv (VERSION_MISMATCH)
		1105
		1106	const_iv (VERB_DEADLOCK)
		1107	const_iv (VERB_RECOVERY)
		1108	const_iv (VERB_REGISTER)
		1109	const_iv (VERB_REPLICATION)
		1110	const_iv (VERB_WAITSFOR)
		1111
		1112	const_iv (VERSION_MAJOR)
		1113	const_iv (VERSION_MINOR)
		1114	const_iv (VERSION_PATCH)
		1115	#if DB_VERSION_MINOR >= 5
		1116	const_iv (MULTIVERSION)
		1117	const_iv (TXN_SNAPSHOT)
		1118	#endif
		1119	#if DB_VERSION_MINOR >= 6
		1120	const_iv (PREV_DUP)
		1121	# if 0
		1122	const_iv (PRIORITY_UNCHANGED)
		1123	const_iv (PRIORITY_VERY_LOW)
		1124	const_iv (PRIORITY_LOW)
		1125	const_iv (PRIORITY_DEFAULT)
		1126	const_iv (PRIORITY_HIGH)
		1127	const_iv (PRIORITY_VERY_HIGH)
		1128	# endif
		1129	#endif
		1130	};
		1131
		1132	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		1133	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
		1134
		1135	newCONSTSUB (stash, "DB_VERSION", newSVnv (DB_VERSION_MAJOR + DB_VERSION_MINOR * .1));
		1136	newCONSTSUB (stash, "DB_VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
		1137
		1138	create_respipe ();
		1139
651	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1140	X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
		1141	#ifdef _WIN32
		1142	X_MUTEX_CHECK (wrklock);
		1143	X_MUTEX_CHECK (reslock);
		1144	X_MUTEX_CHECK (reqlock);
		1145
		1146	X_COND_CHECK (reqwait);
		1147	#endif
652	}	1148	}
653		1149
654	void	1150	void
655	max_poll_reqs (int nreqs)	1151	max_poll_reqs (int nreqs)
656	PROTOTYPE: $	1152	PROTOTYPE: $
…		…
685	max_outstanding = maxreqs;	1181	max_outstanding = maxreqs;
686	OUTPUT:	1182	OUTPUT:
687	RETVAL	1183	RETVAL
688		1184
689	int	1185	int
690	bdbreq_pri (int pri = 0)	1186	dbreq_pri (int pri = 0)
691	PROTOTYPE: ;$	1187	PROTOTYPE: ;$
692	CODE:	1188	CODE:
693	RETVAL = next_pri - PRI_BIAS;	1189	RETVAL = next_pri - PRI_BIAS;
694	if (items > 0)	1190	if (items > 0)
695	{	1191	{
…		…
699	}	1195	}
700	OUTPUT:	1196	OUTPUT:
701	RETVAL	1197	RETVAL
702		1198
703	void	1199	void
704	bdbreq_nice (int nice = 0)	1200	dbreq_nice (int nice = 0)
705	CODE:	1201	CODE:
706	nice = next_pri - nice;	1202	nice = next_pri - nice;
707	if (nice < PRI_MIN) nice = PRI_MIN;	1203	if (nice < PRI_MIN) nice = PRI_MIN;
708	if (nice > PRI_MAX) nice = PRI_MAX;	1204	if (nice > PRI_MAX) nice = PRI_MAX;
709	next_pri = nice + PRI_BIAS;	1205	next_pri = nice + PRI_BIAS;
…		…
717	poll_wait ();	1213	poll_wait ();
718	poll_cb ();	1214	poll_cb ();
719	}	1215	}
720		1216
721	int	1217	int
722	poll()	1218	poll ()
723	PROTOTYPE:	1219	PROTOTYPE:
724	CODE:	1220	CODE:
725	poll_wait ();	1221	poll_wait ();
726	RETVAL = poll_cb ();	1222	RETVAL = poll_cb ();
727	OUTPUT:	1223	OUTPUT:
728	RETVAL	1224	RETVAL
729		1225
730	int	1226	int
731	poll_fileno()	1227	poll_fileno ()
732	PROTOTYPE:	1228	PROTOTYPE:
733	CODE:	1229	CODE:
734	RETVAL = respipe [0];	1230	RETVAL = respipe [0];
735	OUTPUT:	1231	OUTPUT:
736	RETVAL	1232	RETVAL
737		1233
738	int	1234	int
739	poll_cb(...)	1235	poll_cb (...)
740	PROTOTYPE:	1236	PROTOTYPE:
741	CODE:	1237	CODE:
742	RETVAL = poll_cb ();	1238	RETVAL = poll_cb ();
743	OUTPUT:	1239	OUTPUT:
744	RETVAL	1240	RETVAL
745		1241
746	void	1242	void
747	poll_wait()	1243	poll_wait ()
748	PROTOTYPE:	1244	PROTOTYPE:
749	CODE:	1245	CODE:
750	poll_wait ();	1246	poll_wait ();
751		1247
752	int	1248	int
753	nreqs()	1249	nreqs ()
754	PROTOTYPE:	1250	PROTOTYPE:
755	CODE:	1251	CODE:
756	RETVAL = nreqs;	1252	RETVAL = nreqs;
757	OUTPUT:	1253	OUTPUT:
758	RETVAL	1254	RETVAL
759		1255
760	int	1256	int
761	nready()	1257	nready ()
762	PROTOTYPE:	1258	PROTOTYPE:
763	CODE:	1259	CODE:
764	RETVAL = get_nready ();	1260	RETVAL = get_nready ();
765	OUTPUT:	1261	OUTPUT:
766	RETVAL	1262	RETVAL
767		1263
768	int	1264	int
769	npending()	1265	npending ()
770	PROTOTYPE:	1266	PROTOTYPE:
771	CODE:	1267	CODE:
772	RETVAL = get_npending ();	1268	RETVAL = get_npending ();
773	OUTPUT:	1269	OUTPUT:
774	RETVAL	1270	RETVAL
775		1271
776	int	1272	int
777	nthreads()	1273	nthreads ()
778	PROTOTYPE:	1274	PROTOTYPE:
779	CODE:	1275	CODE:
780	if (WORDACCESS_UNSAFE) LOCK (wrklock);	1276	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
781	RETVAL = started;	1277	RETVAL = started;
782	if (WORDACCESS_UNSAFE) UNLOCK (wrklock);	1278	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
783	OUTPUT:	1279	OUTPUT:
784	RETVAL	1280	RETVAL
785		1281
		1282	void
		1283	set_sync_prepare (SV *cb)
		1284	PROTOTYPE: &
		1285	CODE:
		1286	SvREFCNT_dec (prepare_cb);
		1287	prepare_cb = newSVsv (cb);
786		1288
		1289	char *
		1290	strerror (int errorno = errno)
		1291	PROTOTYPE: ;$
		1292	CODE:
		1293	RETVAL = db_strerror (errorno);
		1294	OUTPUT:
		1295	RETVAL
		1296
		1297	DB_ENV *
		1298	db_env_create (U32 env_flags = 0)
		1299	CODE:
		1300	{
		1301	errno = db_env_create (&RETVAL, env_flags);
		1302	if (errno)
		1303	croak ("db_env_create: %s", db_strerror (errno));
		1304
		1305	if (0)
		1306	{
		1307	RETVAL->set_errcall (RETVAL, debug_errcall);
		1308	RETVAL->set_msgcall (RETVAL, debug_msgcall);
		1309	}
		1310	}
		1311	OUTPUT:
		1312	RETVAL
		1313
		1314	void
		1315	db_env_open (DB_ENV *env, octetstring db_home, U32 open_flags, int mode, SV *callback = &PL_sv_undef)
		1316	CODE:
		1317	{
		1318	dREQ (REQ_ENV_OPEN);
		1319
		1320	env->set_thread_count (env, wanted + 2);
		1321
		1322	req->env = env;
		1323	req->uint1 = open_flags | DB_THREAD;
		1324	req->int1 = mode;
		1325	req->buf1 = strdup_ornull (db_home);
		1326	REQ_SEND;
		1327	}
		1328
		1329	void
		1330	db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = &PL_sv_undef)
		1331	CODE:
		1332	{
		1333	dREQ (REQ_ENV_CLOSE);
		1334	req->env = env;
		1335	req->uint1 = flags;
		1336	REQ_SEND;
		1337	ptr_nuke (ST (0));
		1338	}
		1339
		1340	void
		1341	db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1342	CODE:
		1343	{
		1344	dREQ (REQ_ENV_TXN_CHECKPOINT);
		1345	req->env = env;
		1346	req->uint1 = kbyte;
		1347	req->int1 = min;
		1348	req->uint2 = flags;
		1349	REQ_SEND;
		1350	}
		1351
		1352	void
		1353	db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1354	CODE:
		1355	{
		1356	dREQ (REQ_ENV_LOCK_DETECT);
		1357	req->env = env;
		1358	req->uint1 = flags;
		1359	req->uint2 = atype;
		1360	REQ_SEND;
		1361	}
		1362
		1363	void
		1364	db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1365	CODE:
		1366	{
		1367	dREQ (REQ_ENV_MEMP_SYNC);
		1368	req->env = env;
		1369	REQ_SEND;
		1370	}
		1371
		1372	void
		1373	db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = &PL_sv_undef)
		1374	CODE:
		1375	{
		1376	dREQ (REQ_ENV_MEMP_TRICKLE);
		1377	req->env = env;
		1378	req->int1 = percent;
		1379	REQ_SEND;
		1380	}
		1381
		1382
		1383	DB *
		1384	db_create (DB_ENV *env = 0, U32 flags = 0)
		1385	CODE:
		1386	{
		1387	errno = db_create (&RETVAL, env, flags);
		1388	if (errno)
		1389	croak ("db_create: %s", db_strerror (errno));
		1390
		1391	if (RETVAL)
		1392	RETVAL->app_private = (void *)newSVsv (ST (0));
		1393	}
		1394	OUTPUT:
		1395	RETVAL
		1396
		1397	void
		1398	db_open (DB *db, DB_TXN_ornull *txnid, octetstring file, octetstring database, int type, U32 flags, int mode, SV *callback = &PL_sv_undef)
		1399	CODE:
		1400	{
		1401	dREQ (REQ_DB_OPEN);
		1402	req->db = db;
		1403	req->txn = txnid;
		1404	req->buf1 = strdup_ornull (file);
		1405	req->buf2 = strdup_ornull (database);
		1406	req->int1 = type;
		1407	req->uint1 = flags | DB_THREAD;
		1408	req->int2 = mode;
		1409	REQ_SEND;
		1410	}
		1411
		1412	void
		1413	db_close (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
		1414	CODE:
		1415	{
		1416	dREQ (REQ_DB_CLOSE);
		1417	req->db = db;
		1418	req->uint1 = flags;
		1419	req->sv1 = (SV *)db->app_private;
		1420	REQ_SEND;
		1421	ptr_nuke (ST (0));
		1422	}
		1423
		1424	void
		1425	db_compact (DB *db, DB_TXN_ornull *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = &PL_sv_undef)
		1426	CODE:
		1427	{
		1428	dREQ (REQ_DB_COMPACT);
		1429	req->db = db;
		1430	req->txn = txn;
		1431	sv_to_dbt (&req->dbt1, start);
		1432	sv_to_dbt (&req->dbt2, stop);
		1433	req->uint1 = flags;
		1434	REQ_SEND;
		1435	}
		1436
		1437	void
		1438	db_sync (DB *db, U32 flags = 0, SV *callback = &PL_sv_undef)
		1439	CODE:
		1440	{
		1441	dREQ (REQ_DB_SYNC);
		1442	req->db = db;
		1443	req->uint1 = flags;
		1444	REQ_SEND;
		1445	}
		1446
		1447	void
		1448	db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV *key_range, U32 flags = 0, SV *callback = &PL_sv_undef)
		1449	CODE:
		1450	{
		1451	dREQ (REQ_DB_KEY_RANGE);
		1452	req->db = db;
		1453	req->txn = txn;
		1454	sv_to_dbt (&req->dbt1, key);
		1455	req->uint1 = flags;
		1456	req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
		1457	REQ_SEND;
		1458	}
		1459
		1460	void
		1461	db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1462	CODE:
		1463	{
		1464	dREQ (REQ_DB_PUT);
		1465	req->db = db;
		1466	req->txn = txn;
		1467	sv_to_dbt (&req->dbt1, key);
		1468	sv_to_dbt (&req->dbt2, data);
		1469	req->uint1 = flags;
		1470	REQ_SEND;
		1471	}
		1472
		1473	void
		1474	db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1475	CODE:
		1476	{
		1477	dREQ (REQ_DB_GET);
		1478	req->db = db;
		1479	req->txn = txn;
		1480	req->uint1 = flags;
		1481	sv_to_dbt (&req->dbt1, key);
		1482	req->dbt3.flags = DB_DBT_MALLOC;
		1483	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1484	REQ_SEND;
		1485	}
		1486
		1487	void
		1488	db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1489	CODE:
		1490	{
		1491	dREQ (REQ_DB_PGET);
		1492	req->db = db;
		1493	req->txn = txn;
		1494	req->uint1 = flags;
		1495	sv_to_dbt (&req->dbt1, key);
		1496	sv_to_dbt (&req->dbt2, pkey);
		1497	req->dbt3.flags = DB_DBT_MALLOC;
		1498	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1499	REQ_SEND;
		1500	}
		1501
		1502	void
		1503	db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1504	CODE:
		1505	{
		1506	dREQ (REQ_DB_DEL);
		1507	req->db = db;
		1508	req->txn = txn;
		1509	req->uint1 = flags;
		1510	sv_to_dbt (&req->dbt1, key);
		1511	REQ_SEND;
		1512	}
		1513
		1514	void
		1515	db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1516	CODE:
		1517	{
		1518	dREQ (REQ_TXN_COMMIT);
		1519	req->txn = txn;
		1520	req->uint1 = flags;
		1521	REQ_SEND;
		1522	ptr_nuke (ST (0));
		1523	}
		1524
		1525	void
		1526	db_txn_abort (DB_TXN *txn, SV *callback = &PL_sv_undef)
		1527	CODE:
		1528	{
		1529	dREQ (REQ_TXN_ABORT);
		1530	req->txn = txn;
		1531	REQ_SEND;
		1532	ptr_nuke (ST (0));
		1533	}
		1534
		1535	void
		1536	db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = &PL_sv_undef)
		1537	CODE:
		1538	{
		1539	dREQ (REQ_TXN_FINISH);
		1540	req->txn = txn;
		1541	req->uint1 = flags;
		1542	REQ_SEND;
		1543	ptr_nuke (ST (0));
		1544	}
		1545
		1546	void
		1547	db_c_close (DBC *dbc, SV *callback = &PL_sv_undef)
		1548	CODE:
		1549	{
		1550	dREQ (REQ_C_CLOSE);
		1551	req->dbc = dbc;
		1552	REQ_SEND;
		1553	ptr_nuke (ST (0));
		1554	}
		1555
		1556	void
		1557	db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = &PL_sv_undef)
		1558	CODE:
		1559	{
		1560	dREQ (REQ_C_COUNT);
		1561	req->dbc = dbc;
		1562	req->sv1 = SvREFCNT_inc (count);
		1563	REQ_SEND;
		1564	}
		1565
		1566	void
		1567	db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1568	CODE:
		1569	{
		1570	dREQ (REQ_C_PUT);
		1571	req->dbc = dbc;
		1572	sv_to_dbt (&req->dbt1, key);
		1573	sv_to_dbt (&req->dbt2, data);
		1574	req->uint1 = flags;
		1575	REQ_SEND;
		1576	}
		1577
		1578	void
		1579	db_c_get (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1580	CODE:
		1581	{
		1582	dREQ (REQ_C_GET);
		1583	req->dbc = dbc;
		1584	req->uint1 = flags;
		1585	if ((flags & DB_SET) == DB_SET
		1586	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1587	sv_to_dbt (&req->dbt1, key);
		1588	else
		1589	req->dbt1.flags = DB_DBT_MALLOC;
		1590
		1591	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1592
		1593	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1594	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1595	sv_to_dbt (&req->dbt3, data);
		1596	else
		1597	req->dbt3.flags = DB_DBT_MALLOC;
		1598
		1599	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1600	REQ_SEND;
		1601	}
		1602
		1603	void
		1604	db_c_pget (DBC *dbc, SV *key, SV *pkey, SV *data, U32 flags = 0, SV *callback = &PL_sv_undef)
		1605	CODE:
		1606	{
		1607	dREQ (REQ_C_PGET);
		1608	req->dbc = dbc;
		1609	req->uint1 = flags;
		1610	if ((flags & DB_SET) == DB_SET
		1611	|| (flags & DB_SET_RANGE) == DB_SET_RANGE)
		1612	sv_to_dbt (&req->dbt1, key);
		1613	else
		1614	req->dbt1.flags = DB_DBT_MALLOC;
		1615
		1616	req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
		1617
		1618	req->dbt2.flags = DB_DBT_MALLOC;
		1619	req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
		1620
		1621	if ((flags & DB_GET_BOTH) == DB_GET_BOTH
		1622	|| (flags & DB_GET_BOTH_RANGE) == DB_GET_BOTH_RANGE)
		1623	sv_to_dbt (&req->dbt3, data);
		1624	else
		1625	req->dbt3.flags = DB_DBT_MALLOC;
		1626
		1627	req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
		1628	REQ_SEND;
		1629	}
		1630
		1631	void
		1632	db_c_del (DBC *dbc, U32 flags = 0, SV *callback = &PL_sv_undef)
		1633	CODE:
		1634	{
		1635	dREQ (REQ_C_DEL);
		1636	req->dbc = dbc;
		1637	req->uint1 = flags;
		1638	REQ_SEND;
		1639	}
		1640
		1641
		1642	void
		1643	db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = &PL_sv_undef)
		1644	CODE:
		1645	{
		1646	dREQ (REQ_SEQ_OPEN);
		1647	req->seq = seq;
		1648	req->txn = txnid;
		1649	req->uint1 = flags | DB_THREAD;
		1650	sv_to_dbt (&req->dbt1, key);
		1651	REQ_SEND;
		1652	}
		1653
		1654	void
		1655	db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = &PL_sv_undef)
		1656	CODE:
		1657	{
		1658	dREQ (REQ_SEQ_CLOSE);
		1659	req->seq = seq;
		1660	req->uint1 = flags;
		1661	REQ_SEND;
		1662	ptr_nuke (ST (0));
		1663	}
		1664
		1665	void
		1666	db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = &PL_sv_undef)
		1667	CODE:
		1668	{
		1669	dREQ (REQ_SEQ_GET);
		1670	req->seq = seq;
		1671	req->txn = txnid;
		1672	req->int1 = delta;
		1673	req->uint1 = flags;
		1674	req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
		1675	REQ_SEND;
		1676	}
		1677
		1678	void
		1679	db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = &PL_sv_undef)
		1680	CODE:
		1681	{
		1682	dREQ (REQ_SEQ_REMOVE);
		1683	req->seq = seq;
		1684	req->txn = txnid;
		1685	req->uint1 = flags;
		1686	REQ_SEND;
		1687	}
		1688
		1689
		1690	MODULE = BDB PACKAGE = BDB::Env
		1691
		1692	void
		1693	DESTROY (DB_ENV_ornull *env)
		1694	CODE:
		1695	if (env)
		1696	env->close (env, 0);
		1697
		1698	int set_data_dir (DB_ENV *env, const char *dir)
		1699	CODE:
		1700	RETVAL = env->set_data_dir (env, dir);
		1701	OUTPUT:
		1702	RETVAL
		1703
		1704	int set_tmp_dir (DB_ENV *env, const char *dir)
		1705	CODE:
		1706	RETVAL = env->set_tmp_dir (env, dir);
		1707	OUTPUT:
		1708	RETVAL
		1709
		1710	int set_lg_dir (DB_ENV *env, const char *dir)
		1711	CODE:
		1712	RETVAL = env->set_lg_dir (env, dir);
		1713	OUTPUT:
		1714	RETVAL
		1715
		1716	int set_shm_key (DB_ENV *env, long shm_key)
		1717	CODE:
		1718	RETVAL = env->set_shm_key (env, shm_key);
		1719	OUTPUT:
		1720	RETVAL
		1721
		1722	int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
		1723	CODE:
		1724	RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
		1725	OUTPUT:
		1726	RETVAL
		1727
		1728	int set_flags (DB_ENV *env, U32 flags, int onoff)
		1729	CODE:
		1730	RETVAL = env->set_flags (env, flags, onoff);
		1731	OUTPUT:
		1732	RETVAL
		1733
		1734	void set_errfile (DB_ENV *env, FILE *errfile = 0)
		1735	CODE:
		1736	env->set_errfile (env, errfile);
		1737
		1738	void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
		1739	CODE:
		1740	env->set_msgfile (env, msgfile);
		1741
		1742	int set_verbose (DB_ENV *env, U32 which, int onoff = 1)
		1743	CODE:
		1744	RETVAL = env->set_verbose (env, which, onoff);
		1745	OUTPUT:
		1746	RETVAL
		1747
		1748	int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
		1749	CODE:
		1750	RETVAL = env->set_encrypt (env, password, flags);
		1751	OUTPUT:
		1752	RETVAL
		1753
		1754	int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		1755	CODE:
		1756	RETVAL = env->set_timeout (env, timeout * 1000000, flags);
		1757	OUTPUT:
		1758	RETVAL
		1759
		1760	int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
		1761	CODE:
		1762	RETVAL = env->set_mp_max_openfd (env, maxopenfd);
		1763	OUTPUT:
		1764	RETVAL
		1765
		1766	int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
		1767	CODE:
		1768	RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
		1769	OUTPUT:
		1770	RETVAL
		1771
		1772	int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
		1773	CODE:
		1774	RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
		1775	OUTPUT:
		1776	RETVAL
		1777
		1778	int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
		1779	CODE:
		1780	RETVAL = env->set_lk_detect (env, detect);
		1781	OUTPUT:
		1782	RETVAL
		1783
		1784	int set_lk_max_lockers (DB_ENV *env, U32 max)
		1785	CODE:
		1786	RETVAL = env->set_lk_max_lockers (env, max);
		1787	OUTPUT:
		1788	RETVAL
		1789
		1790	int set_lk_max_locks (DB_ENV *env, U32 max)
		1791	CODE:
		1792	RETVAL = env->set_lk_max_locks (env, max);
		1793	OUTPUT:
		1794	RETVAL
		1795
		1796	int set_lk_max_objects (DB_ENV *env, U32 max)
		1797	CODE:
		1798	RETVAL = env->set_lk_max_objects (env, max);
		1799	OUTPUT:
		1800	RETVAL
		1801
		1802	int set_lg_bsize (DB_ENV *env, U32 max)
		1803	CODE:
		1804	RETVAL = env->set_lg_bsize (env, max);
		1805	OUTPUT:
		1806	RETVAL
		1807
		1808	int set_lg_max (DB_ENV *env, U32 max)
		1809	CODE:
		1810	RETVAL = env->set_lg_max (env, max);
		1811	OUTPUT:
		1812	RETVAL
		1813
		1814	DB_TXN *
		1815	txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
		1816	CODE:
		1817	errno = env->txn_begin (env, parent, &RETVAL, flags);
		1818	if (errno)
		1819	croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
		1820	OUTPUT:
		1821	RETVAL
		1822
		1823	MODULE = BDB PACKAGE = BDB::Db
		1824
		1825	void
		1826	DESTROY (DB_ornull *db)
		1827	CODE:
		1828	if (db)
		1829	{
		1830	SV *env = (SV *)db->app_private;
		1831	db->close (db, 0);
		1832	SvREFCNT_dec (env);
		1833	}
		1834
		1835	int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
		1836	CODE:
		1837	RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
		1838	OUTPUT:
		1839	RETVAL
		1840
		1841	int set_flags (DB *db, U32 flags)
		1842	CODE:
		1843	RETVAL = db->set_flags (db, flags);
		1844	OUTPUT:
		1845	RETVAL
		1846
		1847	int set_encrypt (DB *db, const char *password, U32 flags)
		1848	CODE:
		1849	RETVAL = db->set_encrypt (db, password, flags);
		1850	OUTPUT:
		1851	RETVAL
		1852
		1853	int set_lorder (DB *db, int lorder)
		1854	CODE:
		1855	RETVAL = db->set_lorder (db, lorder);
		1856	OUTPUT:
		1857	RETVAL
		1858
		1859	int set_bt_minkey (DB *db, U32 minkey)
		1860	CODE:
		1861	RETVAL = db->set_bt_minkey (db, minkey);
		1862	OUTPUT:
		1863	RETVAL
		1864
		1865	int set_re_delim (DB *db, int delim)
		1866	CODE:
		1867	RETVAL = db->set_re_delim (db, delim);
		1868	OUTPUT:
		1869	RETVAL
		1870
		1871	int set_re_pad (DB *db, int re_pad)
		1872	CODE:
		1873	RETVAL = db->set_re_pad (db, re_pad);
		1874	OUTPUT:
		1875	RETVAL
		1876
		1877	int set_re_source (DB *db, char *source)
		1878	CODE:
		1879	RETVAL = db->set_re_source (db, source);
		1880	OUTPUT:
		1881	RETVAL
		1882
		1883	int set_re_len (DB *db, U32 re_len)
		1884	CODE:
		1885	RETVAL = db->set_re_len (db, re_len);
		1886	OUTPUT:
		1887	RETVAL
		1888
		1889	int set_h_ffactor (DB *db, U32 h_ffactor)
		1890	CODE:
		1891	RETVAL = db->set_h_ffactor (db, h_ffactor);
		1892	OUTPUT:
		1893	RETVAL
		1894
		1895	int set_h_nelem (DB *db, U32 h_nelem)
		1896	CODE:
		1897	RETVAL = db->set_h_nelem (db, h_nelem);
		1898	OUTPUT:
		1899	RETVAL
		1900
		1901	int set_q_extentsize (DB *db, U32 extentsize)
		1902	CODE:
		1903	RETVAL = db->set_q_extentsize (db, extentsize);
		1904	OUTPUT:
		1905	RETVAL
		1906
		1907	DBC *
		1908	cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
		1909	CODE:
		1910	errno = db->cursor (db, txn, &RETVAL, flags);
		1911	if (errno)
		1912	croak ("DB->cursor: %s", db_strerror (errno));
		1913	OUTPUT:
		1914	RETVAL
		1915
		1916	DB_SEQUENCE *
		1917	sequence (DB *db, U32 flags = 0)
		1918	CODE:
		1919	{
		1920	errno = db_sequence_create (&RETVAL, db, flags);
		1921	if (errno)
		1922	croak ("db_sequence_create: %s", db_strerror (errno));
		1923	}
		1924	OUTPUT:
		1925	RETVAL
		1926
		1927
		1928	MODULE = BDB PACKAGE = BDB::Txn
		1929
		1930	void
		1931	DESTROY (DB_TXN_ornull *txn)
		1932	CODE:
		1933	if (txn)
		1934	txn->abort (txn);
		1935
		1936	int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
		1937	CODE:
		1938	RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
		1939	OUTPUT:
		1940	RETVAL
		1941
		1942	int failed (DB_TXN *txn)
		1943	CODE:
		1944	RETVAL = !!(txn->flags & TXN_DEADLOCK);
		1945	OUTPUT:
		1946	RETVAL
		1947
		1948
		1949	MODULE = BDB PACKAGE = BDB::Cursor
		1950
		1951	void
		1952	DESTROY (DBC_ornull *dbc)
		1953	CODE:
		1954	if (dbc)
		1955	dbc->c_close (dbc);
		1956
		1957	MODULE = BDB PACKAGE = BDB::Sequence
		1958
		1959	void
		1960	DESTROY (DB_SEQUENCE_ornull *seq)
		1961	CODE:
		1962	if (seq)
		1963	seq->close (seq, 0);
		1964
		1965	int initial_value (DB_SEQUENCE *seq, db_seq_t value)
		1966	CODE:
		1967	RETVAL = seq->initial_value (seq, value);
		1968	OUTPUT:
		1969	RETVAL
		1970
		1971	int set_cachesize (DB_SEQUENCE *seq, U32 size)
		1972	CODE:
		1973	RETVAL = seq->set_cachesize (seq, size);
		1974	OUTPUT:
		1975	RETVAL
		1976
		1977	int set_flags (DB_SEQUENCE *seq, U32 flags)
		1978	CODE:
		1979	RETVAL = seq->set_flags (seq, flags);
		1980	OUTPUT:
		1981	RETVAL
		1982
		1983	int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
		1984	CODE:
		1985	RETVAL = seq->set_range (seq, min, max);
		1986	OUTPUT:
		1987	RETVAL
		1988

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